Display screen having a graphical user interface



FIG. 1 is a front view of a first embodiment of a display screen having a graphical user interface;

FIG. 2 is a front view of a second embodiment of a display screen having a graphical user interface;

FIG. 3 is a front view of a third embodiment of a display screen having a graphical user interface;

FIG. 4 is a front view of a fourth embodiment of a display screen having a graphical user interface;

FIG. 5 is a front view of a fifth embodiment of a display screen having a graphical user interface; and,

FIG. 6 is a front view of a sixth embodiment of a display screen having a graphical user interface.

All broken lines showing text and portions of the graphical user interface are for the purpose of illustrating portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for a display screen having a graphical user interface, as shown and described. 